Question

Mrs. Bergstedt teaches four classes. Each class has 15 students. Her first class has 9 juniors, her second class has 12 juniors, her third class has 6 juniors, and her fourth class has 3 juniors. She needs to choose four students (one from each class) to present a project.

Answer 1

i dont understand
what is it asking?

Answer 2

probability

Answer 3

ohhhhhhhhhhhhhh.......